Aquarium cover



FIG. 1 is a perspective view taken from the top, front and left side of an aquarium cover showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof; and

FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 3. 

The ornamental design for an aquarium cover, substantially as shown. 